Which sentence structure consists solely of one independent clause?

A simple sentence consists solely of one independent clause, which means it contains a subject and a predicate and expresses a complete thought. This structure is fundamental in writing as it conveys clear and straightforward ideas without any additional information or complexity that would require dependent clauses, as seen in other sentence types.

In contrast, a complex sentence includes at least one independent clause and at least one dependent clause, adding more layers to the sentence's meaning. A compound sentence, on the other hand, includes two or more independent clauses that are connected by a coordinating conjunction, thus comprising multiple complete thoughts. Lastly, a compound-complex sentence contains at least two independent clauses and at least one dependent clause, making it the most complex of the four structures.

Understanding the components of sentence structure not only helps in crafting clear communications but also in recognizing the varied ways thoughts can be expressed in writing.